Repository: OpenScienceRepository
Depends: R (>= 2.14)
Date: 2014-01-01 00:00:00
Title: Saccadic facilitation by modulation of microsaccades in natural backgrounds
Description: Saccades move objects of interest into the center of the visual field for high-acuity visual analysis. White, Stritzke, and Gegenfurtner (Current Biology, 18, 124-128, 2008) have shown that saccadic latencies in the context of a structured background are much shorter than those with an unstructured background at equal levels of visibility. This effect has been explained by possible preactivation of the saccadic circuitry whenever a structured background acts as a mask for potential saccade targets. Here, we show that background textures modulate rates of microsaccades during visual fixation. First, after a display change, structured backgrounds induce a stronger decrease of microsaccade rates than do uniform backgrounds. Second, we demonstrate that the occurrence of a microsaccade in a critical time window can delay a subsequent saccadic response. Taken together, our findings suggest that microsaccades contribute to the saccadic facilitation effect, due to a modulation of micro- saccade rates by properties of the background.    Attention, Perception, & Psychophysics  
Author: Petra Sinn and Ralf Engbert
Maintainer: Ralf Engbert <Ralf.Engbert@uni-potsdam.de>
Authors@R: c(person(given ="Petra", family = "Sinn", role = c("aut")), person(given ="Ralf", family = "Engbert", email = "Ralf.Engbert@uni-potsdam.de", role = c("aut", "cre")))
Package: SinnEngbert2014
Version: 1.0
License: CC BY-NC (http://creativecommons.org/licenses/by-nc/3.0/de/)
